• Blocks the microphone using ultrasonic interference

• Suppresses both the bottom and upper microphones of the phone

• Up to 4 phones can fit inside

• Inaudible frequency of interference.

• No radio jamming

• Powered by external USB, or built-in 6800 mAh rechargeable battery

• Compatible with all types of phones (max. height 180 mm)

SEL PHONE SAFE – Ultrasonic Phone Box
Features:
• Blocks the microphone using ultrasonic interference
• Inaudible frequency of interference
• Acoustically isolated phone can be easily observed
• No radio jamming
• Powered by external USB, or built-in 3200 mAh rechargeable battery
• Compatible with all types of phones (max. width 88 mm)

PROSAFE STANDARD – Acoustic Safe
Features:
• Blocks the microphone using acoustic jamming noise >=50 dB (inside the box)
• Good sound isolation
• EM Shielded (optional)
• No radio jamming
• Powered by rechargeable battery or power adapter.
• Compatible with all types of phones

PROSAFE PORTABLE – Acoustic Safe
Features:
• Blocks the microphone using acoustic jamming noise >=50 dB (inside the box)
• EM Shielded (optional)
• No radio jamming
• Powered by rechargeable battery or power adapter.
• Compatible with all types of phones